Chamber used in the manufacture of sulfuric acid.



W G, MILLS & C. T. PACKARD. CHAMBER USED IN THE MANUFACTURE OF SULFUEIO ACID. APPLICATION FILED MAR. 21, 1914.

it 1 1 2,52% Patented 00:. a, 1914.

j'mill whom it may concern:

UNITE s WILLIE cnononmrrms aim enemas riparian enemies, or EEWIGH, midterm,

ASSIGNOBS TU EDWARD PAGEABD A2315) GQEiEANY, EXMZEED, 01 IPSWICH, EKG- LAND.

specification of Letters Eatent.

Fatented theta 5., 1914;,

Application silica march 21, 191%. serial Ho. seams.

Be it known that we, Winnie Gaoaen MILLS and Crraams TURNER Pacnasn, subjects of the King of Great Britain, both residing at Bramford Works, Ipswich, England, have invented new and useful 1mprovements in the, Chambers Used in the Manufacture of Sulfuric Acid, of which the following is a specification.

The object of this invention is to provide improved chambers for use in the manufacture of sulfuric acid.

According to our invention we form a lead chamber of the shape of a frusturn of a pyramid, and preferably of a cone, which is thelimiting case of a pyramid, so that the walls slope outward from top to bottom, and we cause water to flow down the outer surface of the walls so as to keep the chanr ber cool.

The accompanyingdrawing which shows one way of carrying out the invention is a se -.i nal elevation of such a tower.

ihe chamber 1 which is constructed oi lead is carried by a framework built up of T iron standards 2 strengthened by angle iron rings 3.

l are wrought iron or steel tubular rings carrying lead rings 5 each of which is burned to the chamber wall and forms a gutter or trough. The chamber is thus supported a small distance inside the framework, a suitable distance being 9 inches. This prevents any leakage of acid from the chamber falling onto the framework.

6 is the dishor tray made of lead the sides of which aresupported by aring of boards 7.

8 is the ceiling made of lead burned to the upper end of the chamber 1 and supported by lead straps 9 attached to cross bars 10 on the to of the framework.

The outside of the chamber is cooled by water suppiied by the pipe 11 to branch pipes 12 encircling the chamber. The branch pipes 12 are provided with fine perforations through which the water is sprayed onto the chamber. The water trickles down the chamber to the troughs 5 from which it flows to waste or to a reservoir for further use through the drain pipes 13. The quantity of water is regulated according to the amount of cooling required. F or example more water would be required on a hot day than on a cold one. The gas, coming in the case of the first chamber of a series from the Glover tower, and in the case of successive chambers from the precedin chamber is led by the pipe 14 to the distributing chamber 15 from which four trunks 16 lead to the chamber 1. The gas passes upward and passes out by the single trunk 17 in the center of the ceiling. A finely divided spray 01? water or nitrous vitriol or both may be introduced into the chamber through the pipes 18. in such apparatus the temperature of the chamber can readily be kept constant and the tendency of the gaseous mixture rising in the chamber to become less dense owing to the condensation of the acid mist is to a great extent counteracted as the gas is constantly entering a portion ofthe chamber of less sectional area.

What we claim is:

1. In apparatus for the manufacture of sulfuric acid the combination of a chamber of the shape of a frustum of a pyramid and means for causing water to flow down the outer surface of the wall. of the chamber.

2. In apparatus for the manufacture of sulfuric acid the combination of a chamber of the shape of a frustum of a pyramid, a framework, a trough connecting the chamher to the framework and means for causing water to flow down the outer surface of the wall of the chamber both above and beneath the trough.

3. In apparatus for the manufacture of sulfuric acid the combination of a chamber of the shape of a frustum of a pyramid, a framework, a water supply pipe surrounding the top or the outer surface of the Wall of the chamber, a trough surrounding the wall of the chamber and connected to both the wall and the framework and a water supply pipe surrounding the outer surface of the wall of the chamber just beneath the trou h.

ILLIE GEORGE MILLS. CHARLES TURNER PACKARD. Witnesses:

LEO Janos,

S. C. HORNE. 

